PSLE Julie has a number of files in three colours: purple, green and blue.
311 of the files are purple. The number of purple files is four times the number of green files. What fraction of the files is blue?
Purple |
Green |
Blue |
Total |
3x4 |
8x4 |
11x4 |
4x3 |
1x3 |
|
|
12 u |
3 u |
29 u |
44 u |
Number of purple files is the repeated identity.
Make the number of purple files the same.
LCM of 3 and 4 = 12
Number of blue files
= 44 u - 12 u - 3 u
= 29 u
Fraction of the files that is blue
=
2944 Answer(s):
2944